Features and Benefits

  • Low power
    Power saving 1 sample per second (SPS) mode
    700 µW typical at 3.3 V in normal mode
    7 µW typical at 3.3 V in shutdown mode
  • Easy Implementation
    Low Power
  • SPI-compatible interface
  • Wide operating ranges
    Temperature range: −40°C to +150°C
    Voltage range: 2.7 V to 5.5 V
  • Programmable interrupts
    Critical overtemperature interrupt
    Overtemperature/undertemperature interrupt
  • See datasheet for additional features

Product Details

The ADT7320 is a high accuracy digital temperature sensor that offers breakthrough performance over a wide industrial temperature range, housed in a 4 mm × 4 mm LFCSP package. It contains an internal band gap reference, a temperature sensor, and a 16-bit analog-to-digital converter (ADC) to monitor and digitize the temperature to a resolution of 0.0078°C. The ADC resolution, by default, is set to 13 bits (0.0625°C). The ADC resolution is a user programmable mode that can be changed through the serial interface.

The ADT7320 is guaranteed to operate over supply voltages from 2.7 V to 5.5 V. Operating at 3.3 V, the average supply current is typically 210 μA. The ADT7320 has a shutdown mode that powers down the device and offers a shutdown current of typically 2.0 μA at 3.3 V. The ADT7320 is rated for operation over the −40°C to +150°C temperature range.

The CT pin is an open-drain output that becomes active when the temperature exceeds a programmable critical temperature limit. The INT pin is also an open-drain output that becomes active when the temperature exceeds a programmable limit. The INT pin and CT pin can operate in either comparator or interrupt mode.


  1. Ease of use, no calibration or correction required by the user.
  2. Low power consumption.
  3. Excellent long term stability and reliability.
  4. High accuracy for industrial, instrumentation, and medical applications.
  5. Packaged in a 16-lead RoHS-compliant, 4 mm x 4 mm LFCSP package.


  • RTD and thermistor replacement
  • Thermocouple cold junction compensation
  • Medical equipment
  • Industrial controls and test
  • Food transportation and storage
  • Environmental monitoring and HVAC
  • Laser diode temperature controls

Product Lifecycle icon-recommended Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

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